The characteristic that differentiates the cell in image B from that in image A is: 
Definitions:
HTTPS
A protocol for secure communication over a computer network, with widespread use on the internet, indicated by a lock symbol in the web browser.
Database Index
A data structure that improves the speed of data retrieval operations on a database table at the cost of additional storage space.
Search Engine
A software system designed to carry out web searches, which means to search the World Wide Web in a systematic way for particular information specified in a textual web search query.
Content Aggregator
A software or platform that collects and displays content from various sources in a single location, often used for news, articles, or social media feeds.
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